/** | |
****************************************************************************** | |
* @file stm32f1xx_hal_flash_ex.c | |
* @author MCD Application Team | |
* @version V1.1.0 | |
* @date 14-April-2017 | |
* @brief Extended FLASH HAL module driver. | |
* | |
* This file provides firmware functions to manage the following | |
* functionalities of the FLASH peripheral: | |
* + Extended Initialization/de-initialization functions | |
* + Extended I/O operation functions | |
* + Extended Peripheral Control functions | |
* | |
@verbatim | |
============================================================================== | |
##### Flash peripheral extended features ##### | |
============================================================================== | |
##### How to use this driver ##### | |
============================================================================== | |
[..] This driver provides functions to configure and program the FLASH memory | |
of all STM32F1xxx devices. It includes | |
(++) Set/Reset the write protection | |
(++) Program the user Option Bytes | |
(++) Get the Read protection Level | |
@endverbatim | |
****************************************************************************** | |
* @attention | |
* | |
* <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> | |
* | |
* Redistribution and use in source and binary forms, with or without modification, | |
* are permitted provided that the following conditions are met: | |
* 1. Redistributions of source code must retain the above copyright notice, | |
* this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright notice, | |
* this list of conditions and the following disclaimer in the documentation | |
* and/or other materials provided with the distribution. | |
* 3. Neither the name of STMicroelectronics nor the names of its contributors | |
* may be used to endorse or promote products derived from this software | |
* without specific prior written permission. | |
* | |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | |
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
* | |
****************************************************************************** | |
*/ | |
/* Includes ------------------------------------------------------------------*/ | |
#include "stm32f1xx_hal.h" | |
/** @addtogroup STM32F1xx_HAL_Driver | |
* @{ | |
*/ | |
#ifdef HAL_FLASH_MODULE_ENABLED | |
/** @addtogroup FLASH | |
* @{ | |
*/ | |
/** @addtogroup FLASH_Private_Variables | |
* @{ | |
*/ | |
/* Variables used for Erase pages under interruption*/ | |
extern FLASH_ProcessTypeDef pFlash; | |
/** | |
* @} | |
*/ | |
/** | |
* @} | |
*/ | |
/** @defgroup FLASHEx FLASHEx | |
* @brief FLASH HAL Extension module driver | |
* @{ | |
*/ | |
/* Private typedef -----------------------------------------------------------*/ | |
/* Private define ------------------------------------------------------------*/ | |
/** @defgroup FLASHEx_Private_Constants FLASHEx Private Constants | |
* @{ | |
*/ | |
#define FLASH_POSITION_IWDGSW_BIT FLASH_OBR_IWDG_SW_Pos | |
#define FLASH_POSITION_OB_USERDATA0_BIT FLASH_OBR_DATA0_Pos | |
#define FLASH_POSITION_OB_USERDATA1_BIT FLASH_OBR_DATA1_Pos | |
/** | |
* @} | |
*/ | |
/* Private macro -------------------------------------------------------------*/ | |
/** @defgroup FLASHEx_Private_Macros FLASHEx Private Macros | |
* @{ | |
*/ | |
/** | |
* @} | |
*/ | |
/* Private variables ---------------------------------------------------------*/ | |
/* Private function prototypes -----------------------------------------------*/ | |
/** @defgroup FLASHEx_Private_Functions FLASHEx Private Functions | |
* @{ | |
*/ | |
/* Erase operations */ | |
static void FLASH_MassErase(uint32_t Banks); | |
void FLASH_PageErase(uint32_t PageAddress); | |
/* Option bytes control */ | |
static HAL_StatusTypeDef FLASH_OB_EnableWRP(uint32_t WriteProtectPage); | |
static HAL_StatusTypeDef FLASH_OB_DisableWRP(uint32_t WriteProtectPage); | |
static HAL_StatusTypeDef FLASH_OB_RDP_LevelConfig(uint8_t ReadProtectLevel); | |
static HAL_StatusTypeDef FLASH_OB_UserConfig(uint8_t UserConfig); | |
static HAL_StatusTypeDef FLASH_OB_ProgramData(uint32_t Address, uint8_t Data); | |
static uint32_t FLASH_OB_GetWRP(void); | |
static uint32_t FLASH_OB_GetRDP(void); | |
static uint8_t FLASH_OB_GetUser(void); | |
/** | |
* @} | |
*/ | |
/* Exported functions ---------------------------------------------------------*/ | |
/** @defgroup FLASHEx_Exported_Functions FLASHEx Exported Functions | |
* @{ | |
*/ | |
/** @defgroup FLASHEx_Exported_Functions_Group1 FLASHEx Memory Erasing functions | |
* @brief FLASH Memory Erasing functions | |
* | |
@verbatim | |
============================================================================== | |
##### FLASH Erasing Programming functions ##### | |
============================================================================== | |
[..] The FLASH Memory Erasing functions, includes the following functions: | |
(+) @ref HAL_FLASHEx_Erase: return only when erase has been done | |
(+) @ref HAL_FLASHEx_Erase_IT: end of erase is done when @ref HAL_FLASH_EndOfOperationCallback | |
is called with parameter 0xFFFFFFFF | |
[..] Any operation of erase should follow these steps: | |
(#) Call the @ref HAL_FLASH_Unlock() function to enable the flash control register and | |
program memory access. | |
(#) Call the desired function to erase page. | |
(#) Call the @ref HAL_FLASH_Lock() to disable the flash program memory access | |
(recommended to protect the FLASH memory against possible unwanted operation). | |
@endverbatim | |
* @{ | |
*/ | |
/** | |
* @brief Perform a mass erase or erase the specified FLASH memory pages | |
* @note To correctly run this function, the @ref HAL_FLASH_Unlock() function | |
* must be called before. | |
* Call the @ref HAL_FLASH_Lock() to disable the flash memory access | |
* (recommended to protect the FLASH memory against possible unwanted operation) | |
* @param[in] pEraseInit pointer to an FLASH_EraseInitTypeDef structure that | |
* contains the configuration information for the erasing. | |
* | |
* @param[out] PageError pointer to variable that | |
* contains the configuration information on faulty page in case of error | |
* (0xFFFFFFFF means that all the pages have been correctly erased) | |
* | |
* @retval HAL_StatusTypeDef HAL Status | |
*/ | |
HAL_StatusTypeDef HAL_FLASHEx_Erase(FLASH_EraseInitTypeDef *pEraseInit, uint32_t *PageError) | |
{ | |
HAL_StatusTypeDef status = HAL_ERROR; | |
uint32_t address = 0U; | |
/* Process Locked */ | |
__HAL_LOCK(&pFlash); | |
/* Check the parameters */ | |
assert_param(IS_FLASH_TYPEERASE(pEraseInit->TypeErase)); | |
if (pEraseInit->TypeErase == FLASH_TYPEERASE_MASSERASE) | |
{ | |
#if defined(FLASH_BANK2_END) | |
if (pEraseInit->Banks == FLASH_BANK_BOTH) | |
{ | |
/* Mass Erase requested for Bank1 and Bank2 */ | |
/* Wait for last operation to be completed */ | |
if ((FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE) == HAL_OK) && \ | |
(FLASH_WaitForLastOperationBank2((uint32_t)FLASH_TIMEOUT_VALUE) == HAL_OK)) | |
{ | |
/*Mass erase to be done*/ | |
FLASH_MassErase(FLASH_BANK_BOTH); | |
/* Wait for last operation to be completed */ | |
if ((FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE) == HAL_OK) && \ | |
(FLASH_WaitForLastOperationBank2((uint32_t)FLASH_TIMEOUT_VALUE) == HAL_OK)) | |
{ | |
status = HAL_OK; | |
} | |
/* If the erase operation is completed, disable the MER Bit */ | |
CLEAR_BIT(FLASH->CR, FLASH_CR_MER); | |
CLEAR_BIT(FLASH->CR2, FLASH_CR2_MER); | |
} | |
} | |
else if (pEraseInit->Banks == FLASH_BANK_2) | |
{ | |
/* Mass Erase requested for Bank2 */ | |
/* Wait for last operation to be completed */ | |
if (FLASH_WaitForLastOperationBank2((uint32_t)FLASH_TIMEOUT_VALUE) == HAL_OK) | |
{ | |
/*Mass erase to be done*/ | |
FLASH_MassErase(FLASH_BANK_2); | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperationBank2((uint32_t)FLASH_TIMEOUT_VALUE); | |
/* If the erase operation is completed, disable the MER Bit */ | |
CLEAR_BIT(FLASH->CR2, FLASH_CR2_MER); | |
} | |
} | |
else | |
#endif /* FLASH_BANK2_END */ | |
{ | |
/* Mass Erase requested for Bank1 */ | |
/* Wait for last operation to be completed */ | |
if (FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE) == HAL_OK) | |
{ | |
/*Mass erase to be done*/ | |
FLASH_MassErase(FLASH_BANK_1); | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
/* If the erase operation is completed, disable the MER Bit */ | |
CLEAR_BIT(FLASH->CR, FLASH_CR_MER); | |
} | |
} | |
} | |
else | |
{ | |
/* Page Erase is requested */ | |
/* Check the parameters */ | |
assert_param(IS_FLASH_PROGRAM_ADDRESS(pEraseInit->PageAddress)); | |
assert_param(IS_FLASH_NB_PAGES(pEraseInit->PageAddress, pEraseInit->NbPages)); | |
#if defined(FLASH_BANK2_END) | |
/* Page Erase requested on address located on bank2 */ | |
if(pEraseInit->PageAddress > FLASH_BANK1_END) | |
{ | |
/* Wait for last operation to be completed */ | |
if (FLASH_WaitForLastOperationBank2((uint32_t)FLASH_TIMEOUT_VALUE) == HAL_OK) | |
{ | |
/*Initialization of PageError variable*/ | |
*PageError = 0xFFFFFFFFU; | |
/* Erase by page by page to be done*/ | |
for(address = pEraseInit->PageAddress; | |
address < (pEraseInit->PageAddress + (pEraseInit->NbPages)*FLASH_PAGE_SIZE); | |
address += FLASH_PAGE_SIZE) | |
{ | |
FLASH_PageErase(address); | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperationBank2((uint32_t)FLASH_TIMEOUT_VALUE); | |
/* If the erase operation is completed, disable the PER Bit */ | |
CLEAR_BIT(FLASH->CR2, FLASH_CR2_PER); | |
if (status != HAL_OK) | |
{ | |
/* In case of error, stop erase procedure and return the faulty address */ | |
*PageError = address; | |
break; | |
} | |
} | |
} | |
} | |
else | |
#endif /* FLASH_BANK2_END */ | |
{ | |
/* Page Erase requested on address located on bank1 */ | |
/* Wait for last operation to be completed */ | |
if (FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE) == HAL_OK) | |
{ | |
/*Initialization of PageError variable*/ | |
*PageError = 0xFFFFFFFFU; | |
/* Erase page by page to be done*/ | |
for(address = pEraseInit->PageAddress; | |
address < ((pEraseInit->NbPages * FLASH_PAGE_SIZE) + pEraseInit->PageAddress); | |
address += FLASH_PAGE_SIZE) | |
{ | |
FLASH_PageErase(address); | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
/* If the erase operation is completed, disable the PER Bit */ | |
CLEAR_BIT(FLASH->CR, FLASH_CR_PER); | |
if (status != HAL_OK) | |
{ | |
/* In case of error, stop erase procedure and return the faulty address */ | |
*PageError = address; | |
break; | |
} | |
} | |
} | |
} | |
} | |
/* Process Unlocked */ | |
__HAL_UNLOCK(&pFlash); | |
return status; | |
} | |
/** | |
* @brief Perform a mass erase or erase the specified FLASH memory pages with interrupt enabled | |
* @note To correctly run this function, the @ref HAL_FLASH_Unlock() function | |
* must be called before. | |
* Call the @ref HAL_FLASH_Lock() to disable the flash memory access | |
* (recommended to protect the FLASH memory against possible unwanted operation) | |
* @param pEraseInit pointer to an FLASH_EraseInitTypeDef structure that | |
* contains the configuration information for the erasing. | |
* | |
* @retval HAL_StatusTypeDef HAL Status | |
*/ | |
HAL_StatusTypeDef HAL_FLASHEx_Erase_IT(FLASH_EraseInitTypeDef *pEraseInit) | |
{ | |
HAL_StatusTypeDef status = HAL_OK; | |
/* Process Locked */ | |
__HAL_LOCK(&pFlash); | |
/* If procedure already ongoing, reject the next one */ | |
if (pFlash.ProcedureOnGoing != FLASH_PROC_NONE) | |
{ | |
return HAL_ERROR; | |
} | |
/* Check the parameters */ | |
assert_param(IS_FLASH_TYPEERASE(pEraseInit->TypeErase)); | |
/* Enable End of FLASH Operation and Error source interrupts */ | |
__HAL_FLASH_ENABLE_IT(FLASH_IT_EOP | FLASH_IT_ERR); | |
#if defined(FLASH_BANK2_END) | |
/* Enable End of FLASH Operation and Error source interrupts */ | |
__HAL_FLASH_ENABLE_IT(FLASH_IT_EOP_BANK2 | FLASH_IT_ERR_BANK2); | |
#endif | |
if (pEraseInit->TypeErase == FLASH_TYPEERASE_MASSERASE) | |
{ | |
/*Mass erase to be done*/ | |
pFlash.ProcedureOnGoing = FLASH_PROC_MASSERASE; | |
FLASH_MassErase(pEraseInit->Banks); | |
} | |
else | |
{ | |
/* Erase by page to be done*/ | |
/* Check the parameters */ | |
assert_param(IS_FLASH_PROGRAM_ADDRESS(pEraseInit->PageAddress)); | |
assert_param(IS_FLASH_NB_PAGES(pEraseInit->PageAddress, pEraseInit->NbPages)); | |
pFlash.ProcedureOnGoing = FLASH_PROC_PAGEERASE; | |
pFlash.DataRemaining = pEraseInit->NbPages; | |
pFlash.Address = pEraseInit->PageAddress; | |
/*Erase 1st page and wait for IT*/ | |
FLASH_PageErase(pEraseInit->PageAddress); | |
} | |
return status; | |
} | |
/** | |
* @} | |
*/ | |
/** @defgroup FLASHEx_Exported_Functions_Group2 Option Bytes Programming functions | |
* @brief Option Bytes Programming functions | |
* | |
@verbatim | |
============================================================================== | |
##### Option Bytes Programming functions ##### | |
============================================================================== | |
[..] | |
This subsection provides a set of functions allowing to control the FLASH | |
option bytes operations. | |
@endverbatim | |
* @{ | |
*/ | |
/** | |
* @brief Erases the FLASH option bytes. | |
* @note This functions erases all option bytes except the Read protection (RDP). | |
* The function @ref HAL_FLASH_Unlock() should be called before to unlock the FLASH interface | |
* The function @ref HAL_FLASH_OB_Unlock() should be called before to unlock the options bytes | |
* The function @ref HAL_FLASH_OB_Launch() should be called after to force the reload of the options bytes | |
* (system reset will occur) | |
* @retval HAL status | |
*/ | |
HAL_StatusTypeDef HAL_FLASHEx_OBErase(void) | |
{ | |
uint8_t rdptmp = OB_RDP_LEVEL_0; | |
HAL_StatusTypeDef status = HAL_ERROR; | |
/* Get the actual read protection Option Byte value */ | |
rdptmp = FLASH_OB_GetRDP(); | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
if(status == HAL_OK) | |
{ | |
/* Clean the error context */ | |
pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; | |
/* If the previous operation is completed, proceed to erase the option bytes */ | |
SET_BIT(FLASH->CR, FLASH_CR_OPTER); | |
SET_BIT(FLASH->CR, FLASH_CR_STRT); | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
/* If the erase operation is completed, disable the OPTER Bit */ | |
CLEAR_BIT(FLASH->CR, FLASH_CR_OPTER); | |
if(status == HAL_OK) | |
{ | |
/* Restore the last read protection Option Byte value */ | |
status = FLASH_OB_RDP_LevelConfig(rdptmp); | |
} | |
} | |
/* Return the erase status */ | |
return status; | |
} | |
/** | |
* @brief Program option bytes | |
* @note The function @ref HAL_FLASH_Unlock() should be called before to unlock the FLASH interface | |
* The function @ref HAL_FLASH_OB_Unlock() should be called before to unlock the options bytes | |
* The function @ref HAL_FLASH_OB_Launch() should be called after to force the reload of the options bytes | |
* (system reset will occur) | |
* | |
* @param pOBInit pointer to an FLASH_OBInitStruct structure that | |
* contains the configuration information for the programming. | |
* | |
* @retval HAL_StatusTypeDef HAL Status | |
*/ | |
HAL_StatusTypeDef HAL_FLASHEx_OBProgram(FLASH_OBProgramInitTypeDef *pOBInit) | |
{ | |
HAL_StatusTypeDef status = HAL_ERROR; | |
/* Process Locked */ | |
__HAL_LOCK(&pFlash); | |
/* Check the parameters */ | |
assert_param(IS_OPTIONBYTE(pOBInit->OptionType)); | |
/* Write protection configuration */ | |
if((pOBInit->OptionType & OPTIONBYTE_WRP) == OPTIONBYTE_WRP) | |
{ | |
assert_param(IS_WRPSTATE(pOBInit->WRPState)); | |
if (pOBInit->WRPState == OB_WRPSTATE_ENABLE) | |
{ | |
/* Enable of Write protection on the selected page */ | |
status = FLASH_OB_EnableWRP(pOBInit->WRPPage); | |
} | |
else | |
{ | |
/* Disable of Write protection on the selected page */ | |
status = FLASH_OB_DisableWRP(pOBInit->WRPPage); | |
} | |
if (status != HAL_OK) | |
{ | |
/* Process Unlocked */ | |
__HAL_UNLOCK(&pFlash); | |
return status; | |
} | |
} | |
/* Read protection configuration */ | |
if((pOBInit->OptionType & OPTIONBYTE_RDP) == OPTIONBYTE_RDP) | |
{ | |
status = FLASH_OB_RDP_LevelConfig(pOBInit->RDPLevel); | |
if (status != HAL_OK) | |
{ | |
/* Process Unlocked */ | |
__HAL_UNLOCK(&pFlash); | |
return status; | |
} | |
} | |
/* USER configuration */ | |
if((pOBInit->OptionType & OPTIONBYTE_USER) == OPTIONBYTE_USER) | |
{ | |
status = FLASH_OB_UserConfig(pOBInit->USERConfig); | |
if (status != HAL_OK) | |
{ | |
/* Process Unlocked */ | |
__HAL_UNLOCK(&pFlash); | |
return status; | |
} | |
} | |
/* DATA configuration*/ | |
if((pOBInit->OptionType & OPTIONBYTE_DATA) == OPTIONBYTE_DATA) | |
{ | |
status = FLASH_OB_ProgramData(pOBInit->DATAAddress, pOBInit->DATAData); | |
if (status != HAL_OK) | |
{ | |
/* Process Unlocked */ | |
__HAL_UNLOCK(&pFlash); | |
return status; | |
} | |
} | |
/* Process Unlocked */ | |
__HAL_UNLOCK(&pFlash); | |
return status; | |
} | |
/** | |
* @brief Get the Option byte configuration | |
* @param pOBInit pointer to an FLASH_OBInitStruct structure that | |
* contains the configuration information for the programming. | |
* | |
* @retval None | |
*/ | |
void HAL_FLASHEx_OBGetConfig(FLASH_OBProgramInitTypeDef *pOBInit) | |
{ | |
pOBInit->OptionType = OPTIONBYTE_WRP | OPTIONBYTE_RDP | OPTIONBYTE_USER; | |
/*Get WRP*/ | |
pOBInit->WRPPage = FLASH_OB_GetWRP(); | |
/*Get RDP Level*/ | |
pOBInit->RDPLevel = FLASH_OB_GetRDP(); | |
/*Get USER*/ | |
pOBInit->USERConfig = FLASH_OB_GetUser(); | |
} | |
/** | |
* @brief Get the Option byte user data | |
* @param DATAAdress Address of the option byte DATA | |
* This parameter can be one of the following values: | |
* @arg @ref OB_DATA_ADDRESS_DATA0 | |
* @arg @ref OB_DATA_ADDRESS_DATA1 | |
* @retval Value programmed in USER data | |
*/ | |
uint32_t HAL_FLASHEx_OBGetUserData(uint32_t DATAAdress) | |
{ | |
uint32_t value = 0; | |
if (DATAAdress == OB_DATA_ADDRESS_DATA0) | |
{ | |
/* Get value programmed in OB USER Data0 */ | |
value = READ_BIT(FLASH->OBR, FLASH_OBR_DATA0) >> FLASH_POSITION_OB_USERDATA0_BIT; | |
} | |
else | |
{ | |
/* Get value programmed in OB USER Data1 */ | |
value = READ_BIT(FLASH->OBR, FLASH_OBR_DATA1) >> FLASH_POSITION_OB_USERDATA1_BIT; | |
} | |
return value; | |
} | |
/** | |
* @} | |
*/ | |
/** | |
* @} | |
*/ | |
/** @addtogroup FLASHEx_Private_Functions | |
* @{ | |
*/ | |
/** | |
* @brief Full erase of FLASH memory Bank | |
* @param Banks Banks to be erased | |
* This parameter can be one of the following values: | |
* @arg @ref FLASH_BANK_1 Bank1 to be erased | |
@if STM32F101xG | |
* @arg @ref FLASH_BANK_2 Bank2 to be erased | |
* @arg @ref FLASH_BANK_BOTH Bank1 and Bank2 to be erased | |
@endif | |
@if STM32F103xG | |
* @arg @ref FLASH_BANK_2 Bank2 to be erased | |
* @arg @ref FLASH_BANK_BOTH Bank1 and Bank2 to be erased | |
@endif | |
* | |
* @retval None | |
*/ | |
static void FLASH_MassErase(uint32_t Banks) | |
{ | |
/* Check the parameters */ | |
assert_param(IS_FLASH_BANK(Banks)); | |
/* Clean the error context */ | |
pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; | |
#if defined(FLASH_BANK2_END) | |
if(Banks == FLASH_BANK_BOTH) | |
{ | |
/* bank1 & bank2 will be erased*/ | |
SET_BIT(FLASH->CR, FLASH_CR_MER); | |
SET_BIT(FLASH->CR2, FLASH_CR2_MER); | |
SET_BIT(FLASH->CR, FLASH_CR_STRT); | |
SET_BIT(FLASH->CR2, FLASH_CR2_STRT); | |
} | |
else if(Banks == FLASH_BANK_2) | |
{ | |
/*Only bank2 will be erased*/ | |
SET_BIT(FLASH->CR2, FLASH_CR2_MER); | |
SET_BIT(FLASH->CR2, FLASH_CR2_STRT); | |
} | |
else | |
{ | |
#endif /* FLASH_BANK2_END */ | |
#if !defined(FLASH_BANK2_END) | |
/* Prevent unused argument(s) compilation warning */ | |
UNUSED(Banks); | |
#endif /* FLASH_BANK2_END */ | |
/* Only bank1 will be erased*/ | |
SET_BIT(FLASH->CR, FLASH_CR_MER); | |
SET_BIT(FLASH->CR, FLASH_CR_STRT); | |
#if defined(FLASH_BANK2_END) | |
} | |
#endif /* FLASH_BANK2_END */ | |
} | |
/** | |
* @brief Enable the write protection of the desired pages | |
* @note An option byte erase is done automatically in this function. | |
* @note When the memory read protection level is selected (RDP level = 1), | |
* it is not possible to program or erase the flash page i if | |
* debug features are connected or boot code is executed in RAM, even if nWRPi = 1 | |
* | |
* @param WriteProtectPage specifies the page(s) to be write protected. | |
* The value of this parameter depend on device used within the same series | |
* @retval HAL status | |
*/ | |
static HAL_StatusTypeDef FLASH_OB_EnableWRP(uint32_t WriteProtectPage) | |
{ | |
HAL_StatusTypeDef status = HAL_OK; | |
uint16_t WRP0_Data = 0xFFFF; | |
#if defined(FLASH_WRP1_WRP1) | |
uint16_t WRP1_Data = 0xFFFF; | |
#endif /* FLASH_WRP1_WRP1 */ | |
#if defined(FLASH_WRP2_WRP2) | |
uint16_t WRP2_Data = 0xFFFF; | |
#endif /* FLASH_WRP2_WRP2 */ | |
#if defined(FLASH_WRP3_WRP3) | |
uint16_t WRP3_Data = 0xFFFF; | |
#endif /* FLASH_WRP3_WRP3 */ | |
/* Check the parameters */ | |
assert_param(IS_OB_WRP(WriteProtectPage)); | |
/* Get current write protected pages and the new pages to be protected ******/ | |
WriteProtectPage = (uint32_t)(~((~FLASH_OB_GetWRP()) | WriteProtectPage)); | |
#if defined(OB_WRP_PAGES0TO15MASK) | |
WRP0_Data = (uint16_t)(WriteProtectPage & OB_WRP_PAGES0TO15MASK); | |
#elif defined(OB_WRP_PAGES0TO31MASK) | |
WRP0_Data = (uint16_t)(WriteProtectPage & OB_WRP_PAGES0TO31MASK); | |
#endif /* OB_WRP_PAGES0TO31MASK */ | |
#if defined(OB_WRP_PAGES16TO31MASK) | |
WRP1_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES16TO31MASK) >> 8U); | |
#elif defined(OB_WRP_PAGES32TO63MASK) | |
WRP1_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES32TO63MASK) >> 8U); | |
#endif /* OB_WRP_PAGES32TO63MASK */ | |
#if defined(OB_WRP_PAGES64TO95MASK) | |
WRP2_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES64TO95MASK) >> 16U); | |
#endif /* OB_WRP_PAGES64TO95MASK */ | |
#if defined(OB_WRP_PAGES32TO47MASK) | |
WRP2_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES32TO47MASK) >> 16U); | |
#endif /* OB_WRP_PAGES32TO47MASK */ | |
#if defined(OB_WRP_PAGES96TO127MASK) | |
WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES96TO127MASK) >> 24U); | |
#elif defined(OB_WRP_PAGES48TO255MASK) | |
WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES48TO255MASK) >> 24U); | |
#elif defined(OB_WRP_PAGES48TO511MASK) | |
WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES48TO511MASK) >> 24U); | |
#elif defined(OB_WRP_PAGES48TO127MASK) | |
WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES48TO127MASK) >> 24U); | |
#endif /* OB_WRP_PAGES96TO127MASK */ | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
if(status == HAL_OK) | |
{ | |
/* Clean the error context */ | |
pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; | |
/* To be able to write again option byte, need to perform a option byte erase */ | |
status = HAL_FLASHEx_OBErase(); | |
if (status == HAL_OK) | |
{ | |
/* Enable write protection */ | |
SET_BIT(FLASH->CR, FLASH_CR_OPTPG); | |
#if defined(FLASH_WRP0_WRP0) | |
if(WRP0_Data != 0xFFU) | |
{ | |
OB->WRP0 &= WRP0_Data; | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
} | |
#endif /* FLASH_WRP0_WRP0 */ | |
#if defined(FLASH_WRP1_WRP1) | |
if((status == HAL_OK) && (WRP1_Data != 0xFFU)) | |
{ | |
OB->WRP1 &= WRP1_Data; | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
} | |
#endif /* FLASH_WRP1_WRP1 */ | |
#if defined(FLASH_WRP2_WRP2) | |
if((status == HAL_OK) && (WRP2_Data != 0xFFU)) | |
{ | |
OB->WRP2 &= WRP2_Data; | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
} | |
#endif /* FLASH_WRP2_WRP2 */ | |
#if defined(FLASH_WRP3_WRP3) | |
if((status == HAL_OK) && (WRP3_Data != 0xFFU)) | |
{ | |
OB->WRP3 &= WRP3_Data; | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
} | |
#endif /* FLASH_WRP3_WRP3 */ | |
/* if the program operation is completed, disable the OPTPG Bit */ | |
CLEAR_BIT(FLASH->CR, FLASH_CR_OPTPG); | |
} | |
} | |
return status; | |
} | |
/** | |
* @brief Disable the write protection of the desired pages | |
* @note An option byte erase is done automatically in this function. | |
* @note When the memory read protection level is selected (RDP level = 1), | |
* it is not possible to program or erase the flash page i if | |
* debug features are connected or boot code is executed in RAM, even if nWRPi = 1 | |
* | |
* @param WriteProtectPage specifies the page(s) to be write unprotected. | |
* The value of this parameter depend on device used within the same series | |
* @retval HAL status | |
*/ | |
static HAL_StatusTypeDef FLASH_OB_DisableWRP(uint32_t WriteProtectPage) | |
{ | |
HAL_StatusTypeDef status = HAL_OK; | |
uint16_t WRP0_Data = 0xFFFF; | |
#if defined(FLASH_WRP1_WRP1) | |
uint16_t WRP1_Data = 0xFFFF; | |
#endif /* FLASH_WRP1_WRP1 */ | |
#if defined(FLASH_WRP2_WRP2) | |
uint16_t WRP2_Data = 0xFFFF; | |
#endif /* FLASH_WRP2_WRP2 */ | |
#if defined(FLASH_WRP3_WRP3) | |
uint16_t WRP3_Data = 0xFFFF; | |
#endif /* FLASH_WRP3_WRP3 */ | |
/* Check the parameters */ | |
assert_param(IS_OB_WRP(WriteProtectPage)); | |
/* Get current write protected pages and the new pages to be unprotected ******/ | |
WriteProtectPage = (FLASH_OB_GetWRP() | WriteProtectPage); | |
#if defined(OB_WRP_PAGES0TO15MASK) | |
WRP0_Data = (uint16_t)(WriteProtectPage & OB_WRP_PAGES0TO15MASK); | |
#elif defined(OB_WRP_PAGES0TO31MASK) | |
WRP0_Data = (uint16_t)(WriteProtectPage & OB_WRP_PAGES0TO31MASK); | |
#endif /* OB_WRP_PAGES0TO31MASK */ | |
#if defined(OB_WRP_PAGES16TO31MASK) | |
WRP1_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES16TO31MASK) >> 8U); | |
#elif defined(OB_WRP_PAGES32TO63MASK) | |
WRP1_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES32TO63MASK) >> 8U); | |
#endif /* OB_WRP_PAGES32TO63MASK */ | |
#if defined(OB_WRP_PAGES64TO95MASK) | |
WRP2_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES64TO95MASK) >> 16U); | |
#endif /* OB_WRP_PAGES64TO95MASK */ | |
#if defined(OB_WRP_PAGES32TO47MASK) | |
WRP2_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES32TO47MASK) >> 16U); | |
#endif /* OB_WRP_PAGES32TO47MASK */ | |
#if defined(OB_WRP_PAGES96TO127MASK) | |
WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES96TO127MASK) >> 24U); | |
#elif defined(OB_WRP_PAGES48TO255MASK) | |
WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES48TO255MASK) >> 24U); | |
#elif defined(OB_WRP_PAGES48TO511MASK) | |
WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES48TO511MASK) >> 24U); | |
#elif defined(OB_WRP_PAGES48TO127MASK) | |
WRP3_Data = (uint16_t)((WriteProtectPage & OB_WRP_PAGES48TO127MASK) >> 24U); | |
#endif /* OB_WRP_PAGES96TO127MASK */ | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
if(status == HAL_OK) | |
{ | |
/* Clean the error context */ | |
pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; | |
/* To be able to write again option byte, need to perform a option byte erase */ | |
status = HAL_FLASHEx_OBErase(); | |
if (status == HAL_OK) | |
{ | |
SET_BIT(FLASH->CR, FLASH_CR_OPTPG); | |
#if defined(FLASH_WRP0_WRP0) | |
if(WRP0_Data != 0xFFU) | |
{ | |
OB->WRP0 |= WRP0_Data; | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
} | |
#endif /* FLASH_WRP0_WRP0 */ | |
#if defined(FLASH_WRP1_WRP1) | |
if((status == HAL_OK) && (WRP1_Data != 0xFFU)) | |
{ | |
OB->WRP1 |= WRP1_Data; | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
} | |
#endif /* FLASH_WRP1_WRP1 */ | |
#if defined(FLASH_WRP2_WRP2) | |
if((status == HAL_OK) && (WRP2_Data != 0xFFU)) | |
{ | |
OB->WRP2 |= WRP2_Data; | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
} | |
#endif /* FLASH_WRP2_WRP2 */ | |
#if defined(FLASH_WRP3_WRP3) | |
if((status == HAL_OK) && (WRP3_Data != 0xFFU)) | |
{ | |
OB->WRP3 |= WRP3_Data; | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
} | |
#endif /* FLASH_WRP3_WRP3 */ | |
/* if the program operation is completed, disable the OPTPG Bit */ | |
CLEAR_BIT(FLASH->CR, FLASH_CR_OPTPG); | |
} | |
} | |
return status; | |
} | |
/** | |
* @brief Set the read protection level. | |
* @param ReadProtectLevel specifies the read protection level. | |
* This parameter can be one of the following values: | |
* @arg @ref OB_RDP_LEVEL_0 No protection | |
* @arg @ref OB_RDP_LEVEL_1 Read protection of the memory | |
* @retval HAL status | |
*/ | |
static HAL_StatusTypeDef FLASH_OB_RDP_LevelConfig(uint8_t ReadProtectLevel) | |
{ | |
HAL_StatusTypeDef status = HAL_OK; | |
/* Check the parameters */ | |
assert_param(IS_OB_RDP_LEVEL(ReadProtectLevel)); | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
if(status == HAL_OK) | |
{ | |
/* Clean the error context */ | |
pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; | |
/* If the previous operation is completed, proceed to erase the option bytes */ | |
SET_BIT(FLASH->CR, FLASH_CR_OPTER); | |
SET_BIT(FLASH->CR, FLASH_CR_STRT); | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
/* If the erase operation is completed, disable the OPTER Bit */ | |
CLEAR_BIT(FLASH->CR, FLASH_CR_OPTER); | |
if(status == HAL_OK) | |
{ | |
/* Enable the Option Bytes Programming operation */ | |
SET_BIT(FLASH->CR, FLASH_CR_OPTPG); | |
WRITE_REG(OB->RDP, ReadProtectLevel); | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
/* if the program operation is completed, disable the OPTPG Bit */ | |
CLEAR_BIT(FLASH->CR, FLASH_CR_OPTPG); | |
} | |
} | |
return status; | |
} | |
/** | |
* @brief Program the FLASH User Option Byte. | |
* @note Programming of the OB should be performed only after an erase (otherwise PGERR occurs) | |
* @param UserConfig The FLASH User Option Bytes values FLASH_OBR_IWDG_SW(Bit2), | |
* FLASH_OBR_nRST_STOP(Bit3),FLASH_OBR_nRST_STDBY(Bit4). | |
* And BFBF2(Bit5) for STM32F101xG and STM32F103xG . | |
* @retval HAL status | |
*/ | |
static HAL_StatusTypeDef FLASH_OB_UserConfig(uint8_t UserConfig) | |
{ | |
HAL_StatusTypeDef status = HAL_OK; | |
/* Check the parameters */ | |
assert_param(IS_OB_IWDG_SOURCE((UserConfig&OB_IWDG_SW))); | |
assert_param(IS_OB_STOP_SOURCE((UserConfig&OB_STOP_NO_RST))); | |
assert_param(IS_OB_STDBY_SOURCE((UserConfig&OB_STDBY_NO_RST))); | |
#if defined(FLASH_BANK2_END) | |
assert_param(IS_OB_BOOT1((UserConfig&OB_BOOT1_SET))); | |
#endif /* FLASH_BANK2_END */ | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
if(status == HAL_OK) | |
{ | |
/* Clean the error context */ | |
pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; | |
/* Enable the Option Bytes Programming operation */ | |
SET_BIT(FLASH->CR, FLASH_CR_OPTPG); | |
#if defined(FLASH_BANK2_END) | |
OB->USER = (UserConfig | 0xF0U); | |
#else | |
OB->USER = (UserConfig | 0x88U); | |
#endif /* FLASH_BANK2_END */ | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
/* if the program operation is completed, disable the OPTPG Bit */ | |
CLEAR_BIT(FLASH->CR, FLASH_CR_OPTPG); | |
} | |
return status; | |
} | |
/** | |
* @brief Programs a half word at a specified Option Byte Data address. | |
* @note The function @ref HAL_FLASH_Unlock() should be called before to unlock the FLASH interface | |
* The function @ref HAL_FLASH_OB_Unlock() should be called before to unlock the options bytes | |
* The function @ref HAL_FLASH_OB_Launch() should be called after to force the reload of the options bytes | |
* (system reset will occur) | |
* Programming of the OB should be performed only after an erase (otherwise PGERR occurs) | |
* @param Address specifies the address to be programmed. | |
* This parameter can be 0x1FFFF804 or 0x1FFFF806. | |
* @param Data specifies the data to be programmed. | |
* @retval HAL status | |
*/ | |
static HAL_StatusTypeDef FLASH_OB_ProgramData(uint32_t Address, uint8_t Data) | |
{ | |
HAL_StatusTypeDef status = HAL_ERROR; | |
/* Check the parameters */ | |
assert_param(IS_OB_DATA_ADDRESS(Address)); | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
if(status == HAL_OK) | |
{ | |
/* Clean the error context */ | |
pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; | |
/* Enables the Option Bytes Programming operation */ | |
SET_BIT(FLASH->CR, FLASH_CR_OPTPG); | |
*(__IO uint16_t*)Address = Data; | |
/* Wait for last operation to be completed */ | |
status = FLASH_WaitForLastOperation((uint32_t)FLASH_TIMEOUT_VALUE); | |
/* If the program operation is completed, disable the OPTPG Bit */ | |
CLEAR_BIT(FLASH->CR, FLASH_CR_OPTPG); | |
} | |
/* Return the Option Byte Data Program Status */ | |
return status; | |
} | |
/** | |
* @brief Return the FLASH Write Protection Option Bytes value. | |
* @retval The FLASH Write Protection Option Bytes value | |
*/ | |
static uint32_t FLASH_OB_GetWRP(void) | |
{ | |
/* Return the FLASH write protection Register value */ | |
return (uint32_t)(READ_REG(FLASH->WRPR)); | |
} | |
/** | |
* @brief Returns the FLASH Read Protection level. | |
* @retval FLASH RDP level | |
* This parameter can be one of the following values: | |
* @arg @ref OB_RDP_LEVEL_0 No protection | |
* @arg @ref OB_RDP_LEVEL_1 Read protection of the memory | |
*/ | |
static uint32_t FLASH_OB_GetRDP(void) | |
{ | |
uint32_t readstatus = OB_RDP_LEVEL_0; | |
uint32_t tmp_reg = 0U; | |
/* Read RDP level bits */ | |
tmp_reg = READ_BIT(FLASH->OBR, FLASH_OBR_RDPRT); | |
if (tmp_reg == FLASH_OBR_RDPRT) | |
{ | |
readstatus = OB_RDP_LEVEL_1; | |
} | |
else | |
{ | |
readstatus = OB_RDP_LEVEL_0; | |
} | |
return readstatus; | |
} | |
/** | |
* @brief Return the FLASH User Option Byte value. | |
* @retval The FLASH User Option Bytes values: FLASH_OBR_IWDG_SW(Bit2), | |
* FLASH_OBR_nRST_STOP(Bit3),FLASH_OBR_nRST_STDBY(Bit4). | |
* And FLASH_OBR_BFB2(Bit5) for STM32F101xG and STM32F103xG . | |
*/ | |
static uint8_t FLASH_OB_GetUser(void) | |
{ | |
/* Return the User Option Byte */ | |
return (uint8_t)((READ_REG(FLASH->OBR) & FLASH_OBR_USER) >> FLASH_POSITION_IWDGSW_BIT); | |
} | |
/** | |
* @} | |
*/ | |
/** | |
* @} | |
*/ | |
/** @addtogroup FLASH | |
* @{ | |
*/ | |
/** @addtogroup FLASH_Private_Functions | |
* @{ | |
*/ | |
/** | |
* @brief Erase the specified FLASH memory page | |
* @param PageAddress FLASH page to erase | |
* The value of this parameter depend on device used within the same series | |
* | |
* @retval None | |
*/ | |
void FLASH_PageErase(uint32_t PageAddress) | |
{ | |
/* Clean the error context */ | |
pFlash.ErrorCode = HAL_FLASH_ERROR_NONE; | |
#if defined(FLASH_BANK2_END) | |
if(PageAddress > FLASH_BANK1_END) | |
{ | |
/* Proceed to erase the page */ | |
SET_BIT(FLASH->CR2, FLASH_CR2_PER); | |
WRITE_REG(FLASH->AR2, PageAddress); | |
SET_BIT(FLASH->CR2, FLASH_CR2_STRT); | |
} | |
else | |
{ | |
#endif /* FLASH_BANK2_END */ | |
/* Proceed to erase the page */ | |
SET_BIT(FLASH->CR, FLASH_CR_PER); | |
WRITE_REG(FLASH->AR, PageAddress); | |
SET_BIT(FLASH->CR, FLASH_CR_STRT); | |
#if defined(FLASH_BANK2_END) | |
} | |
#endif /* FLASH_BANK2_END */ | |
} | |
/** | |
* @} | |
*/ | |
/** | |
* @} | |
*/ | |
#endif /* HAL_FLASH_MODULE_ENABLED */ | |
/** | |
* @} | |
*/ | |
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |